With this crazy title, techcrunch's Erick Schonfeld announced that Hugh McLeod (gapingvoid) deleted his twitter account. Why is this news? Is it important? Hugh is a cool blogger, a twitter early adopter and up until recently a big fun.Not any more. Comments from his readers were polarizing, but there was a lot of discussion... For some, twitter has always been a niche service for geeks... for some others, it is the best thing since facebook... and for some it was another passing fad that illustrated the problem of information overload. As similar services pop up using video or other types of communication, and some feel that twitter still doesn't have a business model, we are just pondering about the shortening life cycle of startups. ..